Perhaps you should try some spelling variations:
optical communication » optical communications, optic communication, political communication
information based » information case, information bank, transformation based
development works » development work, development workshop, development network
works africa » towns africa
3.3 optical » 3.3 optimal, 3.3 political, 3.3 critical
based 3.3 » bases 3.3, base 3.3
media 2 » media _, media 1, media 3

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologies _ information based 3.3 optical communication media 2 development works africa.*.